656383841 has 2 divisors, whose sum is σ = 656383842. Its totient is φ = 656383840.

The previous prime is 656383831. The next prime is 656383859. The reversal of 656383841 is 148383656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655564816 + 819025 = 25604^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 656383841 - 2²⁶ = 589274977 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 656383792 and 656383801.

It is not a weakly prime, because it can be changed into another prime (656383831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328191920 + 328191921.

It is an arithmetic number, because the mean of its divisors is an integer number (328191921).

Almost surely, 2^656383841 is an apocalyptic number.

It is an amenable number.

656383841 is a deficient number, since it is larger than the sum of its proper divisors (1).

656383841 is an equidigital number, since it uses as much as digits as its factorization.

656383841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 656383841 is about 25619.9890905519. The cubic root of 656383841 is about 869.0657346512.

The spelling of 656383841 in words is "six hundred fifty-six million, three hundred eighty-three thousand, eight hundred forty-one".